Home / 385,591.08-578,411.12-119,329.24

Finding the Fourth Proportional to 385,591.08, 578,411.12 and 119,329.24

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Solution

The fourth proportional to 385,591.08, 578,411.12 and 119,329.24 is: 179,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,591.08 : 578,411.12 = 119,329.24 : x
  2. Step 2: Convert to fraction form
    385,591.08/578,411.12 = 119,329.24/x
  3. Step 3: Cross multiply
    385,591.08x = 578,411.12 × 119,329.24
  4. Step 4: Simplify right side
    385,591.08x = 69,021,359,357.15
  5. Step 5: Solve for x
    x = 69,021,359,357.15/385,591.08
  6. Step 6: Final answer
    x = 179,001.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.